Home / 12,467.48-18,690.26-5,078.15

Finding the Fourth Proportional to 12,467.48, 18,690.26 and 5,078.15

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Solution

The fourth proportional to 12,467.48, 18,690.26 and 5,078.15 is: 7,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.48 : 18,690.26 = 5,078.15 : x
  2. Step 2: Convert to fraction form
    12,467.48/18,690.26 = 5,078.15/x
  3. Step 3: Cross multiply
    12,467.48x = 18,690.26 × 5,078.15
  4. Step 4: Simplify right side
    12,467.48x = 94,911,863.06
  5. Step 5: Solve for x
    x = 94,911,863.06/12,467.48
  6. Step 6: Final answer
    x = 7,612.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.